In terms of individually listed National Historic Landmarks and other Registered Historic Places, the original area includes the Maryland Statehouse and Hammond-Harwood House, the increase includes Artisan's House, Brice House, John Callahan House, and Chase-Lloyd House.
National Register of Historic Places | Südoststeiermark District | National Trust for Places of Historic Interest or Natural Beauty | district | Eichsfeld (district) | Darjeeling district | Hartberg (district) | Bad Kreuznach (district) | Lake District | school district | Hildesheim (district) | Annapolis, Maryland | District of Columbia | Colonial architecture | United States District Court for the Southern District of New York | historic district | National Historic Landmark | Reutte (district) | Peak District | Leibnitz (district) | Perg (district) | electoral district | District | Annapolis | central business district | Neuwied (district) | Murau (district) | Bludenz (district) | Colonial Secretary | Chittoor District |